Detect PerimeterX
PerimeterX is a provider of scalable, behavior-based threat protection technology for the web, cloud, and mobile.
Detection looks at cookies, script sources, javascript globals across 6 fingerprint rules among the site's public responses.
01
Websites using PerimeterX
Loading website list…
02
Signal classes
PluginView evaluates public page signals in these classes when identifying PerimeterX. Individual fingerprint rule bodies are proprietary and are not published.
- Cookies
- Script sources
- JavaScript globals
03
Example public indicators for PerimeterX
Illustrative indicators derived from public catalog metadata for PerimeterX. A live scan may match additional proprietary rules beyond these examples.
- _px3
- _pxff_cc
- _pxhd
- _pxvid
- client.a.pxi.pub/
- _pxAppId
04
What a detection means
- Establishes
- One or more public signals on the scanned page matched a known PerimeterX signature (6 rules) at the time of the scan.
- Does not establish
- A sitewide install of PerimeterX, an active vendor contract, exclusive use, or that PerimeterX is still in place today.
05
How to check a site for PerimeterX
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest PerimeterX signals.
- 2. PluginView reads only public responses (cookies, script sources, javascript globals) and scores them against the PerimeterX signature set (6 rules).
- 3. Review the confidence score and text explanation for PerimeterX on the results page.
06
FAQ: detecting PerimeterX
- Can PluginView detect PerimeterX without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for PerimeterX — typically cookies, script sources, javascript globals. It does not bypass authentication or paywalls.
- What category is PerimeterX?
- PerimeterX is classified under Security in the PluginView directory.
- How many fingerprint rules cover PerimeterX?
- This reference currently tracks 6 fingerprint rules across cookies, script sources, javascript globals. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses PerimeterX?
- Illustrative public indicators for PerimeterX include _px3; _pxff_cc; _pxhd. A live scan may match additional proprietary rules beyond these examples.
